87272281422 has 24 divisors (see below), whose sum is σ = 190040151600. Its totient is φ = 28944574560.

The previous prime is 87272281399. The next prime is 87272281423. The reversal of 87272281422 is 22418227278.

It is a happy number.

87272281422 is a `hidden beast` number, since 87 + 2 + 72 + 2 + 81 + 422 = 666.

It is a super-2 number, since 2×87272281422² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87272281423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12178479 + ... + 12185642.

It is an arithmetic number, because the mean of its divisors is an integer number (7918339650).

Almost surely, 2^87272281422 is an apocalyptic number.

87272281422 is an abundant number, since it is smaller than the sum of its proper divisors (102767870178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87272281422 is a wasteful number, since it uses less digits than its factorization.

87272281422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24364328 (or 24364325 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The spelling of 87272281422 in words is "eighty-seven billion, two hundred seventy-two million, two hundred eighty-one thousand, four hundred twenty-two".